mandatory
UK ['mæn.də.tri] US [-tɔ:r.i] adjective formal
■describes something which must be done, or which is demanded by law 强制的；必须履行的；法定的•The minister is calling for mandatory prison sentences for people who assault police officers.部长呼吁把袭警者须受的惩罚定为强制监禁。 •Athletes must undergo a mandatory drugs test before competing in the championship.运动员在参加锦标赛前必须接受强制性药检。 •In 1991, the British government made it mandatory to wear rear seat belts in cars.1991年，英国政府强制要求汽车后座乘客佩带安全带。 |